The murderer (one who kills deliberately). He is to be killed in retaliation (qisas) unless the victim’s next of kin let him off or agree to accept the diyah (blood money), because Allah says (interpretation of the meaning): “O you who believe! Al-Qisas (the Law of Equality in punishment) is prescribed for you in case of murder: the free for the free, the slave for the slave, and the female for the female. But if the killer is forgiven by the brother (or the relatives) of the killed against blood money, then adhering to it with fairness and payment of the blood money to heir should be made in fairness. This is an alleviation and a mercy from your Lord. So after this whoever transgresses the limits (i.e. kills the killer after taking the blood money), he shall have a painful torment.” [al-Baqarah 2:178] “And there is (a saving of) life for you in Al-Qisas (the Law of Equality in punishment), O men of understanding, that you may become Al-Muttaqun (the pious).” [al-Baqarah 2:179] And the Prophet (peace and blessings of Allah be upon him) said: “It is not permissible (to shed) the blood of a Muslim who bears witness that there is no god but Allah and that I am the Messenger of Allah, except in three cases: a married adulterer, a soul for a soul, or one who leaves the religion and splits from the jama’ah.” (Narrated by al-Bukhari, 6484; Muslim, 1676) Bandits, i.e., al-muharib, the one who wages war against Allah and His Messenger. Allah says (interpretation of the meaning): “The recompense of those who wage war against Allah and His Messenger and do mischief in the land is only that they shall be killed or crucified or their hands and their feet be cut off from opposite sides, or be exiled from the land. That is their disgrace in this world, and a great torment is theirs in the Hereafter.” [al-Maidah 5:33] Spies . The spy is the one who spies on the Muslims and transmits information to their enemies.